woensdag 18 maart 2015

Friday morning is going to be pretty darned special with three celestial events….a super moon, the Spring equinox and a near-total solar eclipse all happening at the same time!Friday’s eclipse of the Sun begins at 8.30am and reaches its maximum point about an hour later, varying across the UK.The Moon will pass in front of the Sun, blotting out up to 98% of its disc and putting much of the UK into a morning twilight.People in Scotland and Northern Ireland are expected to experience the darkest conditions.Don’t forget to watch and remember to protect your eyes when looking at the eclipse.Eclipses have long been feared as bad omens, but the equinox is celebrated as a time of renewal.The Independent reports:As the eclipse plunges the UK and other places into darkness this Friday, two other rare if less spectacular celestial events will be taking place, too: a Supermoon and the Spring equinox.A Supermoon, or perigee moon, happens when the full or new moon does its closest fly-by of the Earth, making it look bigger than it normally does. And the spring equinox refers to the time of the year when the day and night are of equal duration, mid-way between the longest and shortest days.The solar eclipse refers to a phenomenon where the sun and moon line up, so that the latter obscures the former. And while it won’t be affected by the two other events, it is rare that the three events happen even individually.SupermoonMost of the time, there are between three and six Supermoons a year. There is set to be six in 2015, two of which have already happened. The next will take place on March 20, the day of the eclipse, and the others will come in August, September and October.Eclipses can only happen at new moon, when the moon appears is entirely in shadow. And the spectacular Supermoon images that are often spotted can only happen when the moon is full, since it can only be seen then.As a result, only the last three Supermoons of this year will be visible — because the moon is new rather than full on March 20, it won’t be seen. But it will be gliding past us closer than ever, and its shadow will be visible as it blocks out the sun on Friday morning.Spring equinoxThe equinox will also happen on March 20. While it won’t have any discernable, direct impact on how the solar eclipse looks, it will contribute to a rare collision of three unusual celestial events.On March 20, the Earth’s axis will be perpindecular to the sun’s rays — which only happens twice a year, at the two equinoxes. After that, it will start tipping over, making the days longer in the northern hemisphere.As such, the equinox has long been celebrated as a time of beginning and renewal, by a number of historic cultures, and is linked to Easter and Passover.The equinox will happen at the same time as a solar eclipse in 2053 and 2072, though it doesn’t always appear as close together as that.Source